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A Review on Gas Turbine Gas-Path Diagnostics: State-of-the-Art Methods, Challenges and Opportunities
Universiti Teknologi PETRONAS, Malaysia. (SOFIA)
Universiti Teknologi PETRONAS, Malaysia. (Mechanical Engineering Department)
Universiti Teknologi PETRONAS, Malaysia. (Mechanical Engineering Department)
Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, Framtidens energi. (SOFIA - Simulation and Optimisation for Future Industrial Applications)ORCID-id: 0000-0002-8466-356X
2019 (Engelska)Ingår i: Aerospace, E-ISSN 2226-4310, Vol. 6, nr 7, artikel-id 83Artikel, forskningsöversikt (Refereegranskat) Published
Abstract [en]

Gas-path diagnostics is an essential part of gas turbine (GT) condition-based maintenance (CBM). There exists extensive literature on GT gas-path diagnostics and a variety of methods have been introduced. The fundamental limitations of the conventional methods such as the inability to deal with the nonlinear engine behavior, measurement uncertainty, simultaneous faults, and the limited number of sensors available remain the driving force for exploring more advanced techniques. This review aims to provide a critical survey of the existing literature produced in the area over the past few decades. In the first section, the issue of GT degradation is addressed, aiming to identify the type of physical faults that degrade a gas turbine performance, which gas-path faults contribute more significantly to the overall performance loss, and which specific components often encounter these faults. A brief overview is then given about the inconsistencies in the literature on gas-path diagnostics followed by a discussion of the various challenges against successful gas-path diagnostics and the major desirable characteristics that an advanced fault diagnostic technique should ideally possess. At this point, the available fault diagnostic methods are thoroughly reviewed, and their strengths and weaknesses summarized. Artificial intelligence (AI) based and hybrid diagnostic methods have received a great deal of attention due to their promising potentials to address the above-mentioned limitations along with providing accurate diagnostic results. Moreover, the available validation techniques that system developers used in the past to evaluate the performance of their proposed diagnostic algorithms are discussed. Finally, concluding remarks and recommendations for further investigations are provided.

Ort, förlag, år, upplaga, sidor
Zurich, Switzerland: MDPI, 2019. Vol. 6, nr 7, artikel-id 83
Nyckelord [en]
gas turbine performance; gas-path diagnostics; condition-based maintenance; fault diagnostic methods; diagnostic method validation
Nationell ämneskategori
Rymd- och flygteknik
Forskningsämne
energi- och miljöteknik
Identifikatorer
URN: urn:nbn:se:mdh:diva-44977DOI: 10.3390/aerospace6070083ISI: 000479006500001Scopus ID: 2-s2.0-85070367087OAI: oai:DiVA.org:mdh-44977DiVA, id: diva2:1341516
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KK-stiftelsenTillgänglig från: 2019-08-08 Skapad: 2019-08-08 Senast uppdaterad: 2020-09-24Bibliografiskt granskad

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Fentaye, Amare Desalegn

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